shapes.txt contains the subset of hands used for the note 
alls formatet as xxxyyy, each is 56 points i.e. 112 rows 
and one column per shape, 40 shapes. 

Points are normalized w.r.t. to the height of the image.
I.e. to obtain pixel coordinates multiply x and y with 600.

Ordering w.r.t. to the images is alphanumeric.